Latest Updates:
Normal Topic 6 Bd3 against the Najdorf (Read 2234 times)
gsgs
YaBB Newbies
*
Offline



Posts: 20
Joined: 07/26/18
Gender: Male
Re: 6 Bd3 against the Najdorf
Reply #6 - 06/09/19 at 09:14:17
Post Tools

Lc0 at depth 11 gives 6.Bd3 as best. Maybe that's where Anand got it from ...
Bd3(8),Be3,Be2(7),g3(6),h3,f4(5),f3,a4,Qe2(4)
Bg5,Nb3,a3,h4(3),Bs2,Nf3,Rg1(2),
Bc4,Qf3,Qd3(1),Rb1(0),b3(-1),
Qd2(-2),Nde2(-3),Nf5(-4),b4(-7),g4(-12)

  
Back to top
 
IP Logged
 
gsgs
YaBB Newbies
*
Offline



Posts: 20
Joined: 07/26/18
Gender: Male
Re: 6 Bd3 against the Najdorf
Reply #5 - 06/09/19 at 05:32:00
Post Tools
6.Qd2 e5 7.Nb3 , prevents b3

15-20 good moves after 5...a6 :


Code
Select All
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6
multipv=20
 fen rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - 0 6
      49-51  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52
--------------
f1e2 ,  13 ,42,26,57,22,54,32,16,16,15,17,27,11, 7,23,17,17,21,16,21,21,17,15,20,19,22, 5,15,18,16, 6, 0, 0, 0, 0,10,11,22,15, 0, 0, 0, 0, 0, 0, 8, 0, 8,12,18, 9,13,12 , f1e2 e7e5 d4b3 c8e6 ,52
c1e3 ,  11 ,26,26,46,26,32,26, 7, 7,12,30,16,11,26,23,12, 8,12,15,15,19,11,17,22,15,15,19,12,15, 9, 0,13, 0, 0, 0,10, 5,11, 3, 0, 0, 0, 0, 0,18,13,10,18,16,15, 7,12, 8 , c1e3 f6g4 e3g5 h7h6 ,52
g2g3 ,   8 ,44, 0,34,28-10,24-10, 3, 5,12, 8, 7, 0, 2,20, 6, 4,12,10, 8,15,11,14,19,16, 7,18, 8,12,12,15,27,11, 4,18,18,10, 0, 0,10, 6, 0, 7, 8, 8,12,11, 8, 6,12, 7, 2 , g2g3 e7e5 d4b3 f8e7 ,52
h2h3 ,   2 ,41,32,54,22,20,22,-7,32,24,12,11,15, 9,13, 9,19,10,10, 3, 3, 8, 8, 3, 0, 7, 0, 0, 0, 0, 0, 9,10, 0, 0,14, 0, 0, 0, 0, 0, 0, 0, 8,10,16, 0, 9, 4, 0, 0, 7, 8 , h2h3 b7b5 c3d5 e7e6 ,52
a2a3 ,   0 ,--,-2, 1,-8,-2,-2,-2,-2,-2, 8,-2,-2,-2, 0, 5, 5, 3, 0, 5, 0, 0,-6, 0,-3,-9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 , a2a3 e7e5 d4b3 f8e7 ,52
f1c4 ,   0 ,--, 0,41,38,34,24,24,24,24,15,12,25, 9,14,27,23,13,17,13,12, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 , f1c4 e7e6 e1g1 f8e7 ,52
f1d3 ,   0 ,--,89,55,30,32,12,10,16,37,23,17, 3, 2, 3, 9, 5, 3,13,12,24, 6, 0, 0, 0,-2,-2, 0, 0, 0, 8, 8, 0, 0, 0, 0, 0, 0, 0, 9, 0,12, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 , f1d3 e7e6 e1g1 f8e7 ,52
a2a4 ,   0 ,24,40,22,16,16,20,20,17,24,26, 9,-2,-6, 0, 1,-1, 0, 0,10,-4,-8-12, 0,-6-12-17, 0, 0, 0, 0, 0, 0, 0, 0, 0,-8, 0, 0, 0, 0,-8,-8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 , a2a4 e7e5 d4f3 f8e7 ,52
f2f4 ,   0 ,25,17,17,25,25,39,32,31, 4,-3,-8,--,--, 9,15, 5,17, 8, 8, 5, 7, 1,11, 0,-4,-7,-1, 0,-2,-4,-7,-3-14,-3-15-14,-7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 , f2f4 e7e5 d4b3 b8c6 ,52
h2h4 ,   0 ,26,54-14,14,14,14-12,--, 2, 3,--,--,--,--,--,--,--,--,--,--,---10,-8, 0-10-11,-8, 0-14, 0, 0, 0, 0, 0-11-16,-9,-5, 0,-2, 0, 1-10,-8, 0, 0, 0, 0, 0, 0, 0, 0 , h2h4 e7e5 d4b3 f8e7 ,52
f2f3 ,   0 ,27,27, 8, 5, 2, 5, 9-10,--,--,-3, 0, 2, 0,-3, 8,-2, 0, 1, 0,-4,-5,-1, 0,-7,-8, 7,17,13, 2,13, 0,10, 0,13, 0, 0, 0, 0, 0, 2,12, 0, 0,13, 0, 0, 0, 0, 0, 0, 0 , f2f3 e7e6 g2g4 h7h6 ,52
b2b3 ,   0 ,32,--,55,20, 7, 7,34, 8,16,-2,-9-11-15, 3,  0,-3, 0, 0,-3, 0, 0, 0, 0, 0, 0 , b2b3 e7e5 d4e2 f8e7 ,52
c1g5 ,   0 ,54,40,45,29,29,29,29,29,29,34,22,21,20,45,29,26,18,20,17,15,16, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 , c1g5 e7e6 f2f4 d8b6 ,52
d4b3 ,   0 ,99,41,57,22,54,27,26,15,15,11,12,-2,-1, 7, 4, 7, 0, 8, 0, 6-10,-4, 0, 0, 0, 6,10, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 , d4b3 e7e6 g2g4 b7b5 ,52
d1d3 ,   0 ,99,--,--,--,-7,14,--,--,15, 6,16, 5, 2,26,16,12,15,10, 9,12,15, 8, 3, 4, 0, 0, 2-10-11,-4, 0, 0-11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 , d1d3 b8d7 f1e2 b7b5 ,52
c1d2 ,  -2 ,--, 9,--,--,--,--,--,--, 9, 0,-5,-9, 0, 0,-3, 0, 0, 3, 0, 0,-4,-2, 0,-1,-1-12,-5, 0,-4, 0, 0, 0, 0,-5, 0, 0, 0, 0, 0,-7, 0, 0, 0, 0, 0, 0,-3,-5, 0, 0,-8, 0 , c1d2 e7e5 d4b3 f8e7 ,52
d1e2 ,  -3 ,---15,--, ---25-12, 0,-7,-9,-9, 0-15-15,---11-19,-5, 0, 0, 0,-9, 0-10, 0, 0 , d1e2 e7e5 d4b3 c8e6 ,52
a1b1 ,  -8 ,40, 5,40,46,10,-5,15,15,16, 4, 5,-6, 1,-9-13,-2, 1,-5-13,-2,-8-15,-8,-9-23-11,-2-12-17,-3-19, 0-10-15-17-17-16,-9,-6,-8-12-20,-8-12-12,-7-11,-8,-7,-8,-9,-- , a1b1 e7e5 d4f3 f8e7 ,51
d1f3 , -10 ,65, 6,53, 0, 0, 0, 0, 0, 7, 0, 0,11, 5, 3, 0, 0,-4,-1, 0, 0, 0, 0,-3,-9-13,-4, 0,-2,-8,-4-10-14-18, 0-25,---16,-5, 0,-7, 0,-8-11-13,-8,-2, 0, 0,-8,-8-15,-- , d1f3 g7g6 h2h3 f8g7 ,51
d4f3 , -11 ,25,82,55,30,32,22,39,51,51,20,12,15, 6, 8,14, 5, 5,10, 5,14, 0,-6,-1-12-10,-8, 0-17-27-23-15-18,---16-17-24,---20-16-17,-2,---17-22-15,-5-13-13,-3-15-17,-- , d4f3 b8d7 f1d3 g7g6 ,51
d4e2 ,  -- ,35,12,14, 2, 2, 2, 2, --,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,-- , d4e2 e7e6 g2g3 b8c6 ,21
b2b4 ,  -- -,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,-- , b2b4 e7e5 d4f3 b8c6 , 8
d1d2 ,  -- ,26,-1,-1,19, 6, 6, 6,10, 0-15,-8,-8,-9, 0,-4,-7, --,--,--,--,--,--,--,--,-- , d1d2 e7e5 d4b3 f8e7 ,42
h1g1 ,  -- -,--,--,--,--,--,--,--,-9-14,--,--,--,--, 0,--,--,--,--,--,--,--,--,--,--,-- , h1g1 b7b5 g2g4 c8b7 ,41
--------------
      49-51  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52


 

  
Back to top
 
IP Logged
 
Leon_Trotsky
Senior Member
****
Offline


Кто был никем — тот станет
всем!

Posts: 389
Location: Barcelona, CAT
Joined: 08/11/17
Gender: Male
Re: 6 Bd3 against the Najdorf
Reply #4 - 06/06/19 at 00:08:20
Post Tools
Why not 6. Ad3 g6 and Black simply delays castling, instead try to make a Dragadorf setup ¿

RdC wrote on 06/05/19 at 23:21:00:
5. .. a6 may be a "high class waiting move" as observed by Fischer (?), but it seems all legal tries on move 6 have their points.


Even the crank 6. Tg1!? and 6. Dd2!? (with idea of queenside fianchetto) look interesting. For real theoretical advantage, maybe not, but still.

All of this honestly makes Najdorf close to ridiculous to play nowadays. Anyway 3. Ab5 have even more theory than 6. Ad3  Cheesy
  
Back to top
 
IP Logged
 
RdC
God Member
*****
Offline


I Love ChessPublishing!

Posts: 838
Joined: 05/17/08
Re: 6 Bd3 against the Najdorf
Reply #3 - 06/05/19 at 23:21:00
Post Tools
MNb wrote on 06/05/19 at 09:29:14:
Black at the other hand may play the Scheveningen in Najdorf fashion


5. .. a6 may be a "high class waiting move" as observed by Fischer (?), but it seems all legal tries on move 6 have their points.
  
Back to top
 
IP Logged
 
MNb
God Member
*****
Offline


Rudolf Spielmann forever

Posts: 10351
Location: Moengo
Joined: 01/05/04
Gender: Male
Re: 6 Bd3 against the Najdorf
Reply #2 - 06/05/19 at 09:29:14
Post Tools
Black at the other hand may play the Scheveningen in Najdorf fashion: 6...Nbd7 7.Be3 e6 8.Qe2 b5 9.O-O (9.g4 Bb7 10.g5 b4 or 9.a4 - Rybka - bxa4 10.O-O Bb7 11.f3 Be7 12.Bc4 O-O 13.Bxe6 and Black is usually fine after this trick) Bb7 10.a3 Be7 with a decent Scheveningen position, while 9.O-O-O Bb7 10.a3 Rc8 threatens the typical exchange sac on c3.
  

The book had the effect good books usually have: it made the stupids more stupid, the intelligent more intelligent and the other thousands of readers remained unchanged.
GC Lichtenberg
Back to top
 
IP Logged
 
Syzygy
YaBB Newbies
*
Offline


I Love ChessPublishing!

Posts: 16
Joined: 01/25/18
Gender: Male
Re: 6 Bd3 against the Najdorf
Reply #1 - 06/04/19 at 22:33:21
Post Tools
Well, it seems like Anand has turned 6. Bd3 into his pet line against the Najdorf. The usual prescribed solution is 6...g6, but it turns out that:

7. f3! Bg7 (7...Qb6 8.a3!) 8. Be3 O-O 9. Qd2 Nc6 10. O-O-O! is far more poisonous than it appears at first sight. Black's queenside counterplay is too slow, and after 10...d5, both 11. Nxc6 and 11. h4 appear to be challenging.

Attention has turned to 6...e5, with the main line running 7. Nde2 Be7 8. O-O O-O 9. Ng3! Be6 10. Nd5! Bxd5! 11. exd5 g6! 12. c4 Nbd7 13. Bh6 Re8 14. Rc1 Nc5.

Now, in the very recent game Nepomniachtchi-Wojtaszek 2019, White opted for 15. Bb1 and built up a nice attacking position after 15...a5 16. b3 Rb8 17. f4. However, I think that 15...b5!? might be a good counter in this case.

What worries me more is 15. Bc2. Black can follow the same recipe with 15...a5, when 16. b3 Rb8 is equal due to the awkward placement of the bishop. However, 16. Bd2! is more challenging, when 16...Nfd7 17. b3 Bg5 18. a3 f5 19. b4 Na6 leads to a position which seems to be slightly better for White.

Does anyone have any thoughts on this variation? Should Black go for a Scheveningen set-up? I've always disliked playing the Najdorf in Scheveningen fashion, and my instinct tells me that White should have fair chances for an advantage after something like 6...e6 7. f4 or 7. Qf3.

Edit: Considering Black's other 6th move responses basically completes a mini-repertoire for White, so let's do that:

6...Nc6 7. Nxc6! bxc6 followed by a plan involving Na4 and a queenside fianchetto leads to a positional game where White has good chances for an advantage.

6...Nbd7!? might be Black's best try because of its flexibility. After White's normal responses Black can fianchetto with g6, having avoided the Yugoslav set-up.

Maybe White should try the very rare 7. Be3!?, hoping for 7...g6 8. f3. After 7...e6, 8. Qe2!? leads to an unclear Scheveningen with good attacking chances for White. On the other hand, Black has 7...b6!?, when 8. g4 appears to be a critical try.

Double Edit: On second thought, it's interesting to consider why Black doesn't simply delay castling after 6...e5. For instance, 7. Nde2 Be7 8. O-O Be6 9. f4 exf4 10. Nxf4 Nc6 with equality. After 9. Ng3, Black can play 9...Nc6 to avoid transposing to the super-GM line mentioned above.
« Last Edit: 06/04/19 at 23:43:52 by Syzygy »  
Back to top
 
IP Logged
 
RdC
God Member
*****
Offline


I Love ChessPublishing!

Posts: 838
Joined: 05/17/08
6 Bd3 against the Najdorf
11/11/15 at 00:43:03
Post Tools
It's not something I've ever considered playing or indeed seen any serious theoretical discussion. There however are a number of games that have been played in it and it can transpose to or perhaps from the Tiger Modern. ( 1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. Be3 a6). White has to continue with Nf3 and Bd3, and Black with Nbd7 and c5, after which the Najdorf parameters can be established.
  
Back to top
 
IP Logged
 
Bookmarks: del.icio.us Digg Facebook Google Google+ Linked in reddit StumbleUpon Twitter Yahoo